[Toni likes explaining modern things to Steve. It's an opportunity to sound really smart to someone without immediately being perceived as an arrogant smart ass. Not that she isn't either or both of those things some days but... not always.]

They follow the game with cameras to televise it and use the same cameras for the images up there. What you're seeing now is just them panning the crowd for people with signs and stuff like that. Once the game starts they'll show the active parts up on the screen so you can see what's going on even if you're far away.